Week 5 Summary - Brain and Behaviour (Perception)
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Week 5 Summary - Brain and Behaviour (Perception)

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Questions and Answers

Which cue involves each eye rotating inward to project the image of an object on each retina?

  • Monocular cues
  • Binocular cues
  • Retinal disparity
  • Oculomotor cues (correct)

    • What is the difference between the two retinal images of an object called?

  • Monocular cues
  • Oculomotor cues
  • Binocular cues
  • Retinal disparity (correct)

    • Which type of perception uses cues that make use of optical flow?

  • Motion perception (correct)
  • Size perception
  • Colour perception
  • Shape perception

    • What is the essential 'colour' determined by the dominant wavelength in the mixture of the light called?

    <p>Hue</p> Signup and view all the answers

    What is the overall intensity of all the wavelengths making up light called?

    <p>Brightness</p> Signup and view all the answers

    What is the perception of objects as constant in size, shape, and other properties despite changes in their retinal image called?

    <p>Perceptual constancy</p> Signup and view all the answers

    What type of processing is guided by knowledge, expectations, and other psychological factors?

    <p>Top-down processing</p> Signup and view all the answers

    Which term describes the smallest amount of physical energy a sensory system can detect?

    <p>Absolute threshold</p> Signup and view all the answers

    What is the term for the smallest difference between stimuli that we can detect?

    <p>Just noticeable difference</p> Signup and view all the answers

    According to Weber's law, the smallest detectable difference in stimulus energy is a constant fraction of the intensity of the stimulus. Which equation represents this relationship?

    <p>JND = KI</p> Signup and view all the answers

    Which law states that the perception of magnitude is not absolute but relative?

    <p>Stevens's law</p> Signup and view all the answers

    Which method is used to estimate how our perception of stimulus intensity is related to the actual strength of the stimulus?

    <p>Magnitude methods</p> Signup and view all the answers

    Which law describes the relationship between the smallest detectable difference in stimulus energy and the intensity of the stimulus?

    <p>Weber's law</p> Signup and view all the answers

    Which term describes the smallest difference between stimuli that we can detect?

    <p>Just noticeable difference</p> Signup and view all the answers

    Which type of processing relies on specific, detailed information elements from the sensory receptors that are integrated and assembled into a whole?

    <p>Bottom-up processing</p> Signup and view all the answers

    What are some features that are subject to separate analysis in bottom-up processing?

    <p>Motion and corners</p> Signup and view all the answers

    In face recognition, which features do we tend to rely on more?

    <p>Large-scale features</p> Signup and view all the answers

    What is attention?

    <p>The process of directing and focusing certain psychological resources to enhance perception, performance, and mental experience</p> Signup and view all the answers

    What does attention do to our sensory and perceptual systems?

    <p>Enhances them</p> Signup and view all the answers

    What does attention do to specific information?

    <p>Selects it for further processing</p> Signup and view all the answers

    What does attention do to unwanted stimuli?

    <p>Ignores or screens them out</p> Signup and view all the answers

    What does attention do to the flow of resources necessary for performing a task?

    <p>Allocates mental energy to it</p> Signup and view all the answers

    What processes are involved in attention?

    <p>All of the above</p> Signup and view all the answers

    According to Fechner's law, constant increases in physical energy will produce ______ increases in perceived magnitude.

    <p>smaller</p> Signup and view all the answers

    Stevens's power law for magnitude estimation includes a factor that takes into account the ______ sensitivity of various sensory systems.

    <p>differential</p> Signup and view all the answers

    Signal detection theory is a mathematical model of how a person's ______ and response criterion combine to determine decisions about whether a near-threshold stimulus has occurred.

    <p>sensitivity and response</p> Signup and view all the answers

    What is the error called when no signal is presented, but the participant decides that there was a signal anyway?

    <p>False alarm</p> Signup and view all the answers

    What is the error called when a signal occurs but it is not detected?

    <p>Miss</p> Signup and view all the answers

    What is the error called when a signal occurs and the participant detects it?

    <p>Hit</p> Signup and view all the answers

    What is it called when a person does not report a signal when none was given?

    <p>Correct rejection</p> Signup and view all the answers

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